Absolutely.Only time I met him personally was before a concert (not directed by him) of his terrible "serious" music in Rome (I abandoned the music hall after the first half). I spoke with him about the way he spent his nights and had a very peculiar answer: he did jogging in his enormous apartment about 3-4 o'clock a.m. This was in the late '80's, I don't know if he still does it. Anyway while talking to him about this innocuos matter he emanated a more relaxed impression about him, though I think he was anxious about the concert as he at the time used to consider his serious music as his only real musical output (I think he has a more fair view of his cinema and pop work now, though).

I heard one concert on tv of this stuff and that half concert live around the same time. It is of the experimantal kind, though he didn't make use of electronic instruments (he dabbled in electronics in the '60's and, thank god, brought the experience in his non-serious music). I rememeber a piece called "Pezzi for piano e forte" where he experimented with the piano's dynamic: but melody was absent or imperceptible, more like a series of chords (usually with many dissonanze) and pauses (I saw this twenty years ago so I can't describe it better). I remember the first piece at the live concert was for two (or four?) double basses along the same lines.